A liquidus phase diagram for the groundmass of EETA 79001A (Eg), a primitive Shergottite composition

Details A liquidus phase diagram for the groundmass of EETA 79001A (Eg), a primitive Shergottite composition A liquidus phase diagram for the groundmass of EETA 79001A (Eg), a primitive Shergottite composition

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992msat.work...80j&link_type=abstract

In Lunar and Planetary Inst., Workshop on the Martian Surface and Atmosphere Through Time p 80-81 (SEE N92-28988 19-91)

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Liquidus, Meteoritic Composition, Petrology, Phase Diagrams, Planetary Evolution, Planetary Mantles, Shergottites, Achondrites, Interstitials, Liquids, Planetary Structure

Scientific paper

Shergottites are members of the SNC meteorite suite, which may be samples of Mars. If so, the shergottite in our collection that most likely represents primitive liquid from the Martian mantle is EETA 79001. EETA 79001 has the Nd isotopic signature of a long-term depleted mantle, a relatively high Mg number, and a slightly olivine-normative composition. The authors have performed experiments on the composition of EETA 79001 for traces of Eg. Other topics discussed include: comparison of calculated phase equilibria; nature of the olivine-pyroxene boundary; and interstitial liquids.

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